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Abstract

Land degradation processes are widely spread in the Mediterranean basin as a result of a long history of human pressure upon land resources. It is now widely agreed that accelerated water erosion, together with the destruction of vegetation cover and structure, are the most important sources of soil degradation. It follows that the most important physical indicators of land degradation in the Mediterranean basin are therefore related to the destruction of soil and vegetation resources. Mapping and repeated monitoring of degradational processes thus form the basis for drafting and implementing rational development plans for a sustained use of Mediterranean land resources. However, satellite-based land degradation monitoring requires unbiased estimates of vegetation abundance (for example, independent from soil background reflectance and illumination conditions) and specific requisites in terms of standardisation and portability. These include radiometric rectification of image data and standardised processing methods and parameters. Most image analysis methods, including traditional classification techniques, do not comply with these requirements.

Additional information

Authors: HILL J, Univesity of Trier, Department of Remote Sensing (DE);MÉGIER J, JRC Ispra (IT);MEHL W, JRC Ispra (IT);SOMMER S, JRC Ispra (IT)
Bibliographic Reference: Paper presented: International Colloquium SPECTEL '95, La Serena (CL), April 24-27, 1995
Availability: Available from (1) as Paper EN 38952 ORA
Record Number: 199510686 / Last updated on: 1995-07-07
Category: PUBLICATION
Original language: en
Available languages: en
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